capture url variable across wordpress blog and echo the id

IN PROGRESS
Bids
7
Avg Bid (USD)
$47
Project Budget (USD)
$30 - $250

Project Description:
I need someone to capture a variable across a blog

example: www.blog.com/blog-post?id=backdoor

now the variable is ?id=

so in blog post wherever a special token is placed it will echo {backdoor}

If the user goes to a different page the same token will be used.

If user comes onto blog and has no variable then it will replace and url's with a specificed url instead.

This project will pay $50.00 because it's very simple

Skills required:
PHP, Wordpress
About the employer:
Verified
Public Clarification Board
Bids are hidden by the project creator. Log in as the employer to view bids or to bid on this project.
You will not be able to bid on this project if you are not qualified in one of the job categories. To see your qualifications click here.


$ 50
in 0 days
$ 50
in 1 days
$ 50
in 1 days
$ 50
in 2 days
$ 50
in 2 days
$ 50
in 0 days
Hire tolyadouble
$ 30
in 1 days